# Schema / Taxonomy

## Introduction

When you build a connector using the [connector builder](https://doc.wearepatchworks.com/product-documentation/developer-hub/connector-builder), available [field mappings](https://doc.wearepatchworks.com/product-documentation/process-flows/building-process-flows/process-flow-shapes/standard-shapes/map-shape) are determined by the [data schema](https://doc.wearepatchworks.com/product-documentation/developer-hub/connector-builder/building-your-own-connector/4-endpoints/endpoint-options/schema-taxonomy) specified for the endpoint. The `schema / taxonomy` tab is divided into two panels - for example: 

<div align="left"><figure><img src="https://2440044887-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLYNcUBVQwSkOMG6KjZfz%2Fuploads%2FFZUdLTaq1oELlLMR9A1j%2Fschema%201.png?alt=media&#x26;token=8792f30d-a240-41d6-abfe-be065b94ecb3" alt=""><figcaption></figcaption></figure></div>

For information on these options, please see the following pages:

* [Schema options](https://doc.wearepatchworks.com/product-documentation/developer-hub/connector-builder/building-your-own-connector/4-endpoints/endpoint-options/schema-taxonomy/schema-options)
* [Field tagging](https://doc.wearepatchworks.com/product-documentation/developer-hub/connector-builder/building-your-own-connector/4-endpoints/endpoint-options/schema-taxonomy/field-tagging)


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